



I'm Donna H., the breeder behind Hafen Miniature Schnauzers located in North Brunswick, NJ. I'm an AKC breeder of Merit. We've been breeding and showing Miniature Schnauzers for approx 20 years. I take my breeding program and health testing very seriously.

Why did you start breeding?
What makes your program special?
Where do your breeding dogs live?

These dogs are already reserved or have gone home.
Girl 1
Female
Girl 2
Female
Boy 3
Male
Boy 5
Male
Boy 1
Male
Boy 4
Male
Boy 2
Male

Oliver
Male
Donna has been certified by Good Dog’s screening team for responsible and trusted breeding practices. When you’re ready, reach out to ask about the puppies or anything else on your mind. You’ll get to know each other through messaging, phone, or video and pay securely, all on Good Dog.
Together, you’ll choose the puppy that’s right for you, stay in touch with regular updates, and plan how to bring your new puppy home.

“Deposit is refundable only if we do not have an available puppy.”
Donna may provide a written contract or health guarantee when you purchase a puppy. This helps protect both you and your breeder, ensuring that you both have a clear understanding of the terms of your puppy purchase. If Donna offers a contract or guarantee, the details will be personalized by them. If you have any questions or want to know more, don't hesitate to reach out to Donna directly.
When you pay and communicate on Good Dog, you’re covered by Payment Protection.
You can drive or fly to pick up your puppy from Donna.
Meet in North Brunswick, NJ
186 miles away
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Club memberships
Donna is a member of American Miniature Schnauzer Club and Garden State All Terrier Club.
Certifications & recognitions
AKC Breeder of Merit.
Donna has been a member of Good Dog for over 5 years
Donna was screened for responsible practices and has been a member since 2020.

Hafen Miniature Schnauzers meets or exceeds our community standards in these areas:

Miniature Schnauzer
About Summer
Summer is a female Miniature Schnauzer. Carefully selected as a great representative of her breed, Donna decided to make her part of their program. Donna has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.

Miniature Schnauzer
About Walker
Walker is a male Miniature Schnauzer. Carefully selected as a great representative of his breed, Donna decided to make him part of their program. Donna has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Miniature Schnauzer
About Eevie
Eevie is a female Miniature Schnauzer. Carefully selected as a great representative of her breed, Donna decided to make her part of their program. Donna has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Great level
Hafen Miniature Schnauzers reports to performing the health tests below on their breeding dogs. Ask your breeder about the tests performed on the parents of your litter. Learn more about health testing for Miniature Schnauzers.
Eye Certification (CAER, registered with OFA)
Eye testing reduces the chance of passing down a wide range of hereditary eye illnesses including retinal dysplasia, lens luxation, and glaucoma, which can cause impared vision or blindness.
Brucellosis
A breeder may perform additional tests on their dogs that do not fall into these general categories. These tests may be more uncommon or very specific to a particular breed.
Persistent Müllerian Duct Syndrome, Mycobacterium Avium Complex (MAC), Myotonia Congenita, Schnauzer Type, Progressive Retinal Atrophy (PRA), Generalized, Retinal Dysplasia/Oculoskeletal Dysplasia 1 (RD OSD), Dominant Black DNA Test, PennGen
Genetic testing reduces the chance of passing down a wide variety of hereditary diseases of differing prevalence and severity such as Progressive Retinal Atrophy (an eye disease) and Von Willebrand's Disease (a blood disease).